Q: What are the prime factors of the number 104,123,916?

 A: 2, 3, 13, 31, 7177

Why are those the prime factors of the number 104,123,916?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 104,123,916

104,123,916
Factor Arrows
252,061,958
Factor Arrows
226,030,979
Factor Arrows
38,676,993
Factor Arrows
32,892,331
Factor Arrows
13222,487
Factor Arrows
317,177

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 13, 31, 7177

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 13 x 31 x 7,177 = 104,123,916

This can also be written as 22 x 32 x 131 x 311 x 7,1771 = 104,123,916

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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